S 034-017-C00

 (17)
 Remove and keep the gasket.

 S 034-018-C00

 (18)
 Remove the nuts and washers (6 locations) that attach the servo fuel heater to main oil/fuel heat exchanger.

 S 024-019-C00

 (19)
 Remove the servo fuel heater from the main oil/fuel heat exchanger.

 (a) Keep the gasket.
 S 434-020-C00
 (20) Install dust caps in the ends of the tubes and open ports on the servo fuel heater and main oil/fuel heat exchanger.
 TASK 79-21-02-404-021-C00
 3. Install the Main Oil/Fuel Heat Exchanger
________________________________________
 A. Equipment
 (1) Container - One gallon (4 liter) capacity.
 B. Consumable Materials
 (1) D00601, Grease, (CP2101) graphite - GP460, Aeroshell 8
 C. References
 (1)
AMM 12-13-11/301, Oil Servicing

 (2)
AMM 70-30-01/201, Gaskets

 (3)
AMM 71-00-00/501, Power Plant

 (4)
AMM 71-11-02/201, Fan Cowl Panels

 D. Access
 (1)  
Location Zones
 506 Engine No. 1
 606 Engine No. 2

 (2)  
Access Panels
 5737L/5746L Engine No. 1 - Fan Cowl Assembly
 5837R/5846R Engine No. 2 - Fan Cowl Assembly

 E. Procedure (Fig. 401)
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 79-21-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 864-045-C00
 WARNING:_______DO NOT LET ENGINE OIL STAY ON YOUR SKIN. USE ENGINE OIL IN AREA WITH GOOD VENTILATION. ENGINE OIL IS POISONOUS AND CAN BE ABSORBED THROUGH YOUR SKIN. ENGINE OIL FUMES CAN IRRITATE YOUR RESPIRATORY TRACT.
 BE CAREFUL AROUND THE ENGINE OIL SYSTEM IMMEDIATELY AFTER AN ENGINE SHUTDOWN. THE ENGINE OIL TEMPERATURE STAYS HIGH FOR SOME TIME AFTER AN ENGINE SHUTDOWN AND CAN CAUSE INJURY.
 CAUTION: DO NOT LET ALKALINE CLEANING FLUID GET INTO THE ENGINE OIL.
_______ VERY SMALL QUANTITIES OF THIS FLUID CAN CHANGE THE ENGINE OIL. DAMAGE TO EQUIPMENT CAN OCCUR.
 IMMEDIATELY CLEAN OFF ALL ENGINE OIL THAT FALLS ON THE PAINTED SURFACES AND RUBBER PARTS OF THE AIRPLANE. THE SPECIFIED OIL FOR THIS OIL SYSTEM WILL CAUSE DAMAGE TO THE PAINTED SURFACES AND SOME TYPES OF RUBBER AND MUST NOT BE PERMITTED TO TOUCH THESE PARTS OF THE ENGINE.
 DO NOT PUT THE OIL THAT IS DRAINED FROM THE ENGINE BACK INTO THE ENGINE.
 (1)  
Obey the above Warning and Caution through all this procedure.

 S 214-022-C00

 (2)  
Examine the gaskets for damage (AMM 70-30-01/201).

 (a)  Use the gaskets for the installation if they are in good
 condition.

 S 424-023-C00
 (3)  Install the servo fuel heater on the oil/fuel heat exchanger as follows:
 (a)  
Remove the dust caps from the servo fuel heater and oil/fuel
 exchanger openings.

 (b)  
Make sure the mating surfaces are clean and in good condition.

 (c)  
Install the gasket, lightly lubricated with engine oil, on the studs on the main oil/fuel heat exchanger.

 (d)  
Lightly lubricate the mounting studs (6 locations) on the
 oil/fuel heat exchanger with grease.

 (e)  
Install the servo fuel heater on the oil/fuel heat exchanger
 with the nuts and washers (6 locations).

 (f)  
Tighten the nuts to 95-105 pound-inches
 (10.7-11.9 Newton meters).

 S 214-024-C00
 (4)  Make sure the mating surfaces on the main oil/fuel heat exchanger and the fuel pump are clean and in good condition.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 79-21-02
 ALL  ú ú C02 Page 406 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
　
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